Sage Stiebs-Mathewson
- Gender: Female
- Sole propriator: No
- NPI: 1366926362
Sage Stiebs-Mathewson
Addiction Counselor
She is located at 220 Washington Avenue in Oshkosh, WI 54901. Can help patients with the following: Bipolar Disorder, Childhood Behavioral and Emotional Disorders, Grief, Isolation, Obsessive Compulsive Disorder (OCD), Self-Esteem. Her National Provider Identifier (NPI) number is 1366926362. Appointment can be made via the phone number (920) 236-4700. She is affiliated with 1 practices.
Conditions treated
Sage Stiebs-Mathewson, being an addiction counselor, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Sage Stiebs-Mathewson.
- Abuse of Prescription Drugs
- Addiction Detox
- Alcoholism
- Anger Management
- Anxiety
- Attention-Deficit/Hyperactivity Disorder (ADHD)
- Benzodiazepine Addiction
- Bipolar Disorder
- Career Counseling
- Childhood Behavioral and Emotional Disorders
- Cocaine Addiction
- Compassion Fatigue
- Depression
- Domestic Violence
- Drug Overdose
- Eating Disorder
- Emotional Eating
- Family Conflict
- Gambling Addiction
- Gender Identity
- Grief
- Guilt and Shame
- Infertility
- Infidelity
- Isolation
- Life Coaching
- Life Transitions
- Loss, Grief, and Bereavement
- Marriage Counseling
- Mental Illness
- Meth Addiction
- Obesity
- Obsessive Compulsive Disorder (OCD)
- Online Therapy
- Opioid Addiction
- Painkiller Addiction
- Parenting
- Posttraumatic Stress Disorder (PTSD)
- Relapse Prevention Planning
- Relationship Issues
- School Issues
- Seasonal Affective Disorder (SAD)
- Self-Esteem
- Self-Harming
- Separation Anxiety Disorder
- Sexual Addiction
- Sleep Disorders
- Spirituality and Religion
- Stress
- Substance Use Disorder
- Trauma
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Sage Stiebs-Mathewson as in-network for the following 2026 plans.
Health plans
CareSource (Common Ground Healthcare)
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 18 plans from CareSource (Common Ground Healthcare)
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| CareSource (Common Ground Healthcare) Bronze $0 Ded / $2500 Rx Ded | EPO · Expanded Bronze | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Bronze $0 Ded / $2500 Rx Ded - Vision Exam | EPO · Expanded Bronze | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Bronze $9600 ($45 PCP Copay) | EPO · Expanded Bronze | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Bronze $9600 ($45 PCP Copay) - Vision Exam | EPO · Expanded Bronze | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Bronze Standard $7500 | EPO · Expanded Bronze | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Bronze Standard $7500 - Vision Exam | EPO · Expanded Bronze | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Gold $0 Ded | EPO · Gold | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Gold $0 Ded - Vision Exam | EPO · Gold | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Gold $3300 | EPO · Gold | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Gold $3300 - Vision Exam | EPO · Gold | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Gold Standard $2000 | EPO · Gold | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Gold Standard $2000 - Vision Exam | EPO · Gold | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Silver $4700 Ded / $5000 Rx Ded | EPO · Silver | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Silver $4700 Ded / $5000 Rx Ded - Vision Exam | EPO · Silver | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Silver $5000 Ded / $6000 Rx Ded | EPO · Silver | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Silver $5000 Ded / $6000 Rx Ded - Vision Exam | EPO · Silver | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Silver Standard $6000 | EPO · Silver | Preferred | Accepting new patients |
| CareSource (Common Ground Healthcare) Silver Standard $6000 - Vision Exam | EPO · Silver | Preferred | Accepting new patients |
HealthPartners
Network data as of Dec 16, 2025, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Oak $1,300 Gold | PPO · Gold | Network | Accepting new patients |
| Oak $2,000 Standard Gold | PPO · Gold | Network | Accepting new patients |
Medica
Network data as of Jul 1, 2026, as reported by the insurer.
Show all 27 plans from Medica
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Engage by Medica Bronze HSA | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Engage by Medica Bronze Share | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Engage by Medica Expanded Bronze Standard | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Engage by Medica Gold $0 Copay PCP Visits | EPO · Gold | Preferred | Accepting new patients |
| Engage by Medica Gold Share | EPO · Gold | Preferred | Accepting new patients |
| Engage by Medica Gold Standard | EPO · Gold | Preferred | Accepting new patients |
| Engage by Medica Silver $0 Copay PCP Visits | EPO · Silver | Preferred | Accepting new patients |
| Engage by Medica Silver Share | EPO · Silver | Preferred | Accepting new patients |
| Engage by Medica Silver Standard | EPO · Silver | Preferred | Accepting new patients |
| Essentia Choice Care with Medica Bronze HSA | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Essentia Choice Care with Medica Bronze Share | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Essentia Choice Care with Medica Expanded Bronze Standard | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Essentia Choice Care with Medica Gold $0 Copay PCP Visits | EPO · Gold | Preferred | Accepting new patients |
| Essentia Choice Care with Medica Gold Share | EPO · Gold | Preferred | Accepting new patients |
| Essentia Choice Care with Medica Gold Standard | EPO · Gold | Preferred | Accepting new patients |
| Essentia Choice Care with Medica Silver $0 Copay PCP Visits | EPO · Silver | Preferred | Accepting new patients |
| Essentia Choice Care with Medica Silver Share | EPO · Silver | Preferred | Accepting new patients |
| Essentia Choice Care with Medica Silver Standard | EPO · Silver | Preferred | Accepting new patients |
| Medica Individual Choice Bronze HSA | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Medica Individual Choice Bronze Share | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Medica Individual Choice Expanded Bronze Standard | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Medica Individual Choice Gold $0 Copay PCP Visits | EPO · Gold | Preferred | Accepting new patients |
| Medica Individual Choice Gold Share | EPO · Gold | Preferred | Accepting new patients |
| Medica Individual Choice Gold Standard | EPO · Gold | Preferred | Accepting new patients |
| Medica Individual Choice Silver $0 Copay PCP Visits | EPO · Silver | Preferred | Accepting new patients |
| Medica Individual Choice Silver Share | EPO · Silver | Preferred | Accepting new patients |
| Medica Individual Choice Silver Standard | EPO · Silver | Preferred | Accepting new patients |
Network Health
Network data as of Jan 12, 2026, as reported by the insurer.
Show all 14 plans from Network Health
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Prestige Bronze $0 Medical Deductible (2 plan variants) | HMO · Expanded Bronze | Signatureprestigebronzezeromedicaldeductible | Accepting new patients |
| Prestige Bronze $0 Medical Deductible + Dental + Vision | HMO · Expanded Bronze | Signatureprestigebronzezeromedicaldeductibledv | Accepting new patients |
| Prestige Bronze $0 Medical Deductible + Dental +Vision | HMO · Expanded Bronze | Signatureprestigebronzezeromedicaldeductibledv | Accepting new patients |
| Prestige Bronze Essential + 3 Free PCP Visits | HMO · Expanded Bronze | Prestigebronzeessential | Accepting new patients |
| Prestige Bronze Essential + Dental + Vision + 3 Free PCP Visits | HMO · Expanded Bronze | Prestigebronzeessentialdv | Accepting new patients |
| Prestige Bronze Plus | HMO · Expanded Bronze | Prestigebronzeplus | Accepting new patients |
| Prestige Gold | HMO · Gold | Prestigegold | Accepting new patients |
| Prestige Gold 50 + 1 Free PCP Visit | HMO · Gold | Prestigegoldfifty | Accepting new patients |
| Prestige Gold 50 + Dental + Vision + 1 Free PCP Visit | HMO · Gold | Prestigegoldfiftydv | Accepting new patients |
| Prestige Gold Essential + 3Free PCP Visits | HMO · Gold | Prestigegoldessential | Accepting new patients |
| Prestige Gold Essential + Dental + Vision + 3 Free PCP Visits | HMO · Gold | Prestigegoldessentialdv | Accepting new patients |
| Prestige Silver | HMO · Silver | Prestigesilver | Accepting new patients |
| Prestige Silver Essential + 3 Free PCP Visits | HMO · Silver | Prestigesilveressential | Accepting new patients |
| Prestige Silver Essential + Dental + Vision + 3 Free PCP Visits | HMO · Silver | Prestigesilveressentialdv | Accepting new patients |
Security Health Plan
Network data as of Aug 19, 2026, as reported by the insurer.
Show all 47 plans from Security Health Plan
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Premier $2,000 - 25% | HMO · Gold | Non Preferred | Accepting new patients |
| Premier $2,000 - 25% | HMO · Gold | Preferred | Accepting new patients |
| Premier $3,500 - 30% | HMO · Gold | Non Preferred | Accepting new patients |
| Premier $3,500 - 30% | HMO · Gold | Preferred | Accepting new patients |
| Premier $4,000 - 50% | HMO · Silver | Non Preferred | Accepting new patients |
| Premier $4,000 - 50% | HMO · Silver | Preferred | Accepting new patients |
| Premier $5,000 HDHP | HMO · Silver | Non Preferred | Accepting new patients |
| Premier $5,000 HDHP | HMO · Silver | Preferred | Accepting new patients |
| Premier $6,000 - 40% | HMO · Silver | Non Preferred | Accepting new patients |
| Premier $6,000 - 40% | HMO · Silver | Preferred | Accepting new patients |
| Premier $7,500 | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| Premier $7,500 | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Premier $7,500 HDHP | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| Premier $7,500 HDHP | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Premier HMO $1,500 - 30% | HMO · Gold | Preferred | Accepting new patients |
| Premier HMO $2,500 - 20% Copay | HMO · Gold | Preferred | Accepting new patients |
| Premier HMO $3,400 - 30% HDHP | HMO · Silver | Preferred | Accepting new patients |
| Premier HMO $3,500 - 30% | HMO · Silver | Preferred | Accepting new patients |
| Premier HMO $3,500 HDHP | HMO · Gold | Preferred | Accepting new patients |
| Premier HMO $4,000 - 20% HDHP | HMO · Silver | Preferred | Accepting new patients |
| Premier HMO $5,000 - 20% HDHP | HMO · Silver | Preferred | Accepting new patients |
| Premier HMO $5,500 - 40% Copay | HMO · Silver | Preferred | Accepting new patients |
| Premier HMO $7,500 HDHP | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Premier HMO $750 - 10% | HMO · Platinum | Preferred | Accepting new patients |
| Premier HMO $9,500 | HMO · Bronze | Preferred | Accepting new patients |
| Premier POS $1,500 - 30% | POS · Gold | Non Preferred | Accepting new patients |
| Premier POS $1,500 - 30% | POS · Gold | Preferred | Accepting new patients |
| Premier POS $2,500 - 20% Copay | POS · Gold | Non Preferred | Accepting new patients |
| Premier POS $2,500 - 20% Copay | POS · Gold | Preferred | Accepting new patients |
| Premier POS $3,400 - 30% HDHP | POS · Silver | Non Preferred | Accepting new patients |
| Premier POS $3,400 - 30% HDHP | POS · Silver | Preferred | Accepting new patients |
| Premier POS $3,500 - 30% | POS · Silver | Non Preferred | Accepting new patients |
| Premier POS $3,500 - 30% | POS · Silver | Preferred | Accepting new patients |
| Premier POS $3,500 HDHP | POS · Gold | Non Preferred | Accepting new patients |
| Premier POS $3,500 HDHP | POS · Gold | Preferred | Accepting new patients |
| Premier POS $4,000 - 20% HDHP | POS · Silver | Non Preferred | Accepting new patients |
| Premier POS $4,000 - 20% HDHP | POS · Silver | Preferred | Accepting new patients |
| Premier POS $5,000 - 20% HDHP | POS · Silver | Non Preferred | Accepting new patients |
| Premier POS $5,000 - 20% HDHP | POS · Silver | Preferred | Accepting new patients |
| Premier POS $5,500 - 40% Copay | POS · Silver | Non Preferred | Accepting new patients |
| Premier POS $5,500 - 40% Copay | POS · Silver | Preferred | Accepting new patients |
| Premier POS $7,500 HDHP | POS · Expanded Bronze | Non Preferred | Accepting new patients |
| Premier POS $7,500 HDHP | POS · Expanded Bronze | Preferred | Accepting new patients |
| Premier POS $750 - 10% | POS · Platinum | Non Preferred | Accepting new patients |
| Premier POS $750 - 10% | POS · Platinum | Preferred | Accepting new patients |
| Premier POS $9,500 | POS · Bronze | Non Preferred | Accepting new patients |
| Premier POS $9,500 | POS · Bronze | Preferred | Accepting new patients |
UnitedHealthcare
Network data as of Sep 16, 2026, as reported by the insurer.
Show all 13 plans from UnitedHealthcare
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| UHC Bronze Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, No Referrals) | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Copay Focus+ $0 Indiv Med Ded ($0 Virtual Urgent Care, Dental + Vision, No Referrals) | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Essential ($0 Virtual Urgent Care, No Referrals) | HMO · Bronze | Non Preferred | Accepting new patients |
| UHC Bronze Standard (No Referrals) | HMO · Expanded Bronze | Non Preferred | Accepting new patients |
| UHC Gold Advantage ($0 Virtual Urgent Care, $5 Tier 2 Rx, No Referrals) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Advantage+ ($0 Virtual Urgent Care, $5 Tier 2 Rx, Dental + Vision, No Referrals) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, $5 Tier 2 Rx, No Referrals) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Gold Standard (No Referrals) | HMO · Gold | Non Preferred | Accepting new patients |
| UHC Silver Advantage ($0 Virtual Urgent Care, $5 Tier 2 Rx, No Referrals) | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Advantage+ ($0 Virtual Urgent Care, $5 Tier 2 Rx, Dental + Vision, No Referrals) | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Standard (No Referrals) | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Value ($0 Virtual Urgent Care, $8 Tier 2 Rx, No Referrals) | HMO · Silver | Non Preferred | Accepting new patients |
| UHC Silver Value+ ($0 Virtual Urgent Care, $8 Tier 2 Rx, Dental + Vision, No Referrals) | HMO · Silver | Non Preferred | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Sage Stiebs-Mathewson is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Sage Stiebs-Mathewson is enrolled to bill Medicare as a Practitioner - Mental Health Counselor .
Bills through: County Of Winnebago
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Additional Specialities
- Counselor
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Questions & Answers
Where can you meet with Sage Stiebs-Mathewson?
Sage Stiebs-Mathewson's office is located at 220 Washington Avenue in Oshkosh, WI 54901.
Does Sage Stiebs-Mathewson accept insurance?
Sage Stiebs-Mathewson is listed in-network for 121 ACA Marketplace (Obamacare/HealthCare.gov) plans from CareSource (Common Ground Healthcare), HealthPartners, Medica, Network Health, Security Health Plan, UnitedHealthcare. See the Marketplace plans section for details.
What conditions does Sage Stiebs-Mathewson treat?
Sage Stiebs-Mathewson provides treatment for Bipolar Disorder, Childhood Behavioral and Emotional Disorders, Grief, Isolation, Obsessive Compulsive Disorder (OCD), Self-Esteem. For the full list see this list.
Does Sage Stiebs-Mathewson have affiliation with practices?
Sage Stiebs-Mathewson is affiliated with Nova Counseling Services.